Added support for the enchant spell checking engine
Fix typo
Fix "could not load message" error on valid empty message body (#1489228)
Merge pull request #86 from mweimerskirch/patch-2

Added support for the enchant spell checking engine
Update changelog
Fix IMAP SETMETADATA parameters quoting (#1489231)
Fix bug where signature wasn't changed on identity selection when editing a draft (#1489229)
Open help window in small mode; add more index links